<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>502</title>
    <style>
        html, body {
            padding: 0;
            margin: 0;
            height: 100%;
        }
        .box {
            width: 100%;
            height: 100%;
            background-color: wheat;
            text-align: center;  /*文本水平居中*/
            line-height: 600px;  /*文本垂直居中*/
        }
    </style>
</head>
<body>
 
<div class="box">
    <h1 style="display: inline">502 无效网关</h1><br /><br />
    <h1 style="display: inline">Powered By XIAOZHU‘s Web Server Panel</h1>
</div>
 
</body>
</html>